const Koa=require('koa')
const axios=require('axios')

const app=new Koa()

const middleware1=async (ctx,next)=>{
    ctx.message='aaa'
    await  next()
 
    ctx.body=ctx.message
}

const middleware2=async (ctx,next)=>{
    ctx.message+='bbb'
    await next()
}

const middleware3=async (ctx,next)=>{
    const result=await axios.get('http://123.207.32.32:9001/lyric?id=167876')
    ctx.message=result.data.lrc.lyric
  
}
app.use(middleware1)
 
app.use(middleware2)
 
app.use(middleware3)
app.listen(8000,()=>{
    console.log("服务器启动成功")
})